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/*
* viatool - dump all registers on a VIA CPU + chipset based system.
*
* Copyright (C) 2013 Alexandru Gagniuc
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "quirks.h"
#include <stdio.h>
typedef u8 sata_phy_config[64];
static u32 sata_phy_read32(struct pci_dev *dev, u8 index)
{
/* The SATA PHY control registers are accessed by a funny index/value
* scheme. Each byte (0,1,2,3) has its own 4-bit index */
index = (index >> 2) & 0xf;
u16 i16 = index | (index << 4) | (index << 8)| (index << 12);
/* The index */
pci_write_word(dev, 0x68, i16);
/* The value */
return pci_read_long(dev, 0x64);
}
static void vx900_sata_read_phy_config(struct pci_dev *dev, sata_phy_config cfg)
{
size_t i;
u32* data = (u32*)cfg;
for (i = 0; i < ( sizeof(sata_phy_config) ) >> 2; i++) {
data[i] = sata_phy_read32(dev, i<<2);
}
}
static int quirk_vx900_sata(struct pci_dev *dev)
{
sata_phy_config ephy;
/* Get all the info in one pass */
vx900_sata_read_phy_config(dev, ephy);
/* Put it on the terminal for the user to read and be done with it */
printf("SATA PHY config:\n");
unsigned int i;
for (i = 0; i < sizeof(sata_phy_config); i++) {
if ((i & 0x0f) == 0) {
printf("%.2x :", i);
}
if( (i & 0x0f) == 0x08 )
printf("| ");
printf("%.2x ", ephy[i]);
if ((i & 0x0f) == 0x0f) {
printf("\n");
}
}
return 0;
}
static struct quirk vx900_sb_quirks[] = {
{0, 0, 0x0f, 0, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_SATA,
quirk_vx900_sata },
{0, 0, 0, 0, 0, 0, 0},
};
struct quirk_list vx900_sb_quirk_list = {
.pci_vendor_id = PCI_VENDOR_ID_VIA,
.pci_device_id = PCI_DEVICE_ID_VIA_VX900_LPC,
.dev_quirks = vx900_sb_quirks
};
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